.theme-warpper {
    height: 12vw;
    background-color: #501;
}
.theme-warpper .zhuanti {
    height: 12vw;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    top: 0;
    width: 100vw;
    background-color: white;
}